3 x 3 eigenvalues and eigenvectors

In this video, I showed how to find eigenvalues and eigenvectors of a 3x3 matrix Watch detailed explanation of eigenvectors here https://youtu.be/BWvx4wUSGdA The other eigenvectors are: for lambda = 2, [ 2 1 0 ] for lambda = 3, [ 1 2 1 ]